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Hurricane Eta Public Advisory Number 7
2020-11-02 09:49:15| National Hurricane Center (Atlantic)
Issued at 400 AM EST Mon Nov 02 2020 000 WTNT34 KNHC 020849 TCPAT4 BULLETIN Hurricane Eta Advisory Number 7 NWS National Hurricane Center Miami FL AL292020 400 AM EST Mon Nov 02 2020 ...ETA BECOMES A HURRICANE... ...LIFE-THREATENING STORM SURGE, DAMAGING WINDS, FLASH FLOODING, AND LANDSLIDES EXPECTED ACROSS PORTIONS OF CENTRAL AMERICA... SUMMARY OF 400 AM EST...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...14.8N 80.9W ABOUT 155 MI...250 KM E OF CABO GRACIAS A DIOS ON NIC/HON BORDER ABOUT 175 MI...285 KM ENE OF PUERTO CABEZAS NICARAGUA MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H PRESENT MOVEMENT...W OR 265 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...987 MB...29.15 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * The coast of Nicaragua from the Honduras/Nicaragua border to Sandy Bay Sirpi A Tropical Storm Warning is in effect for... * The northeastern coast of Honduras from Punta Patuca to the Honduras/Nicaragua border A Hurricane Watch is in effect for... * The northeastern coast of Honduras from Punta Patuca to the Honduras/Nicaragua border A Tropical Storm Watch is in effect for... * The northern coast of Honduras from west of Punta Patuca westward to Punta Castilla A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. A warning is typically issued 36 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations difficult or dangerous. Preparations to protect life and property should be rushed to completion. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. A Hurricane Watch means that hurricane conditions are possible within the watch area. A watch is typically issued 48 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations difficult or dangerous. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests elsewhere in Nicaragua and Honduras should monitor the progress of this system. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 400 AM EST (0900 UTC), the center of Hurricane Eta was located near latitude 14.8 North, longitude 80.9 West. Eta is moving toward the west near 12 mph (19 km/h), and this general motion is expected to continue through this morning. A slower motion toward the west-southwest is forecast by this afternoon and continuing into Tuesday. On the forecast track, the center of Eta is expected to approach the northeastern coast of Nicaragua this afternoon, and make landfall within the Hurricane Warning area in Nicaragua by early Tuesday. The center of Eta is forecast to move farther inland over northern Nicaragua through early Wednesday. Maximum sustained winds have increased to near 75 mph (120 km/h) with higher gusts. Strengthening, possibly rapid, is expected through early Tuesday, and Eta could be a major hurricane when landfall occurs by early Tuesday. Weakening will begin after the system moves inland. Hurricane-force winds extend outward up to 25 miles (35 km) from the center and tropical-storm-force winds extend outward up to 125 miles (205 km). The estimated minimum central pressure is 987 mb (29.15 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Eta can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4 and WMO header WTNT44 KNHC. WIND: Hurricane conditions are expected in the Hurricane Warning area beginning tonight, with tropical storm conditions possible in this area by this afternoon. Tropical storm conditions are expected in the Tropical Storm Warning area by this afternoon, and hurricane conditions are possible in the Hurricane Watch area by early Tuesday. Tropical Storm conditions are possible in the Tropical Storm Watch area by early Tuesday. RAINFALL: Eta is expected to produce the following rainfall amounts through Friday evening: Much of Nicaragua and Honduras: 15 to 25 inches (380 to 635 mm), isolated amounts of 35 inches (890 mm). Eastern Guatemala and southern Belize: 10 to 20 inches (255 to 510 mm), isolated amounts of 25 inches (635 mm). Portions of Panama and Costa Rica: 10 to 15 inches (255 to 380 mm), isolated amounts of 25 inches (635 mm). Jamaica and southeast Mexico: 5 to 10 inches (125 to 255 mm), isolated amounts of 15 inches (380 mm) over southern areas. El Salvador, Southern Haiti, and the Cayman Islands: 3 to 5 inches (75 to 125 mm), isolated amounts of 10 inches (255 mm) This rainfall would lead to catastrophic, life-threatening flash flooding and river flooding, along with landslides in areas of higher terrain of Central America. Flash flooding and river flooding would be possible across Jamaica, southeast Mexico, El Salvador, southern Haiti, and the Cayman Islands. STORM SURGE: A dangerous storm surge will raise water levels by as much as 10 to 15 feet above normal tide levels in areas of onshore winds along the coast of Nicaragua within the hurricane warning area, and 3 to 5 feet above normal tide levels along the coast of Honduras within the tropical storm warning area. Near the coast, the surge will be accompanied by large and destructive waves. SURF: Swells generated by Eta are expected to affect portions of the coast of Central America and the Yucatan Peninsula of Mexico during the next few days. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next intermediate advisory at 700 AM EST. Next complete advisory at 1000 AM EST. $$ Forecaster Pasch
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Hurricane Eta Forecast Advisory Number 7
2020-11-02 09:48:44| National Hurricane Center (Atlantic)
Issued at 0900 UTC MON NOV 02 2020 000 WTNT24 KNHC 020848 TCMAT4 HURRICANE ETA FORECAST/ADVISORY NUMBER 7 NWS NATIONAL HURRICANE CENTER MIAMI FL AL292020 0900 UTC MON NOV 02 2020 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... NONE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A HURRICANE WARNING IS IN EFFECT FOR... * THE COAST OF NICARAGUA FROM THE HONDURAS/NICARAGUA BORDER TO SANDY BAY SIRPI A TROPICAL STORM WARNING IS IN EFFECT FOR... * THE NORTHEASTERN COAST OF HONDURAS FROM PUNTA PATUCA TO THE HONDURAS/NICARAGUA BORDER A HURRICANE WATCH IS IN EFFECT FOR... * THE NORTHEASTERN COAST OF HONDURAS FROM PUNTA PATUCA TO THE HONDURAS/NICARAGUA BORDER A TROPICAL STORM WATCH IS IN EFFECT FOR... * THE NORTHERN COAST OF HONDURAS FROM WEST OF PUNTA PATUCA WESTWARD TO PUNTA CASTILLA A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA. A WARNING IS TYPICALLY ISSUED 36 HOURS BEFORE THE ANTICIPATED FIRST OCCURRENCE OF TROPICAL-STORM-FORCE WINDS...CONDITIONS THAT MAKE OUTSIDE PREPARATIONS DIFFICULT OR DANGEROUS. PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO COMPLETION. A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA WITHIN 36 HOURS. A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA. A WATCH IS TYPICALLY ISSUED 48 HOURS BEFORE THE ANTICIPATED FIRST OCCURRENCE OF TROPICAL-STORM-FORCE WINDS...CONDITIONS THAT MAKE OUTSIDE PREPARATIONS DIFFICULT OR DANGEROUS. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS. INTERESTS ELSEWHERE IN NICARAGUA AND HONDURAS SHOULD MONITOR THE PROGRESS OF THIS SYSTEM. HURRICANE CENTER LOCATED NEAR 14.8N 80.9W AT 02/0900Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE WEST OR 265 DEGREES AT 10 KT ESTIMATED MINIMUM CENTRAL PRESSURE 987 MB MAX SUSTAINED WINDS 65 KT WITH GUSTS TO 80 KT. 64 KT....... 20NE 0SE 0SW 20NW. 50 KT....... 50NE 30SE 10SW 50NW. 34 KT.......110NE 90SE 30SW 90NW. 12 FT SEAS..120NE 60SE 60SW 90NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 14.8N 80.9W AT 02/0900Z AT 02/0600Z CENTER WAS LOCATED NEAR 14.9N 80.4W FORECAST VALID 02/1800Z 14.6N 82.0W MAX WIND 80 KT...GUSTS 100 KT. 64 KT... 20NE 10SE 0SW 20NW. 50 KT... 50NE 40SE 20SW 30NW. 34 KT...120NE 90SE 40SW 90NW. FORECAST VALID 03/0600Z 14.2N 83.0W MAX WIND 95 KT...GUSTS 115 KT. 64 KT... 20NE 20SE 0SW 20NW. 50 KT... 50NE 40SE 20SW 40NW. 34 KT...120NE 90SE 50SW 90NW. FORECAST VALID 03/1800Z 14.0N 83.7W...INLAND MAX WIND 85 KT...GUSTS 105 KT. 64 KT... 20NE 20SE 0SW 0NW. 50 KT... 50NE 40SE 20SW 30NW. 34 KT...120NE 80SE 40SW 60NW. FORECAST VALID 04/0600Z 13.9N 84.5W...INLAND MAX WIND 45 KT...GUSTS 55 KT. 34 KT... 60NE 50SE 20SW 30NW. FORECAST VALID 04/1800Z 14.0N 85.7W...INLAND MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 05/0600Z 14.4N 86.9W...INLAND MAX WIND 25 KT...GUSTS 35 KT. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 06/0600Z 15.2N 88.6W...INLAND MAX WIND 25 KT...GUSTS 35 KT. OUTLOOK VALID 07/0600Z 15.8N 88.8W...INLAND MAX WIND 20 KT...GUSTS 30 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 14.8N 80.9W INTERMEDIATE PUBLIC ADVISORY...WTNT34 KNHC/MIATCPAT4...AT 02/1200Z NEXT ADVISORY AT 02/1500Z $$ FORECASTER PASCH
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Tropical Storm Eta Public Advisory Number 6A
2020-11-02 06:45:08| National Hurricane Center (Atlantic)
Issued at 100 AM EST Mon Nov 02 2020 209 WTNT34 KNHC 020545 TCPAT4 BULLETIN Tropical Storm Eta Intermediate Advisory Number 6A NWS National Hurricane Center Miami FL AL292020 100 AM EST Mon Nov 02 2020 ...ETA NEAR HURRICANE STRENGTH... ...LIFE-THREATENING STORM SURGE, DAMAGING WINDS, FLASH FLOODING, AND LANDSLIDES EXPECTED ACROSS PORTIONS OF CENTRAL AMERICA... SUMMARY OF 100 AM EST...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...14.9N 80.4W ABOUT 185 MI...300 KM E OF CABO GRACIAS A DIOS ON NIC/HON BORDER ABOUT 210 MI...340 KM ENE OF PUERTO CABEZAS NICARAGUA MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...989 MB...29.21 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * The coast of Nicaragua from the Honduras/Nicaragua border to Sandy Bay Sirpi A Tropical Storm Warning is in effect for... * The northeastern coast of Honduras from Punta Patuca to the Honduras/Nicaragua border A Hurricane Watch is in effect for... * The northeastern coast of Honduras from Punta Patuca to the Honduras/Nicaragua border A Tropical Storm Watch is in effect for... * The northern coast of Honduras from west of Punta Patuca westward to Punta Castilla A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. A warning is typically issued 36 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations difficult or dangerous. Preparations to protect life and property should be rushed to completion. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. A Hurricane Watch means that hurricane conditions are possible within the watch area. A watch is typically issued 48 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations difficult or dangerous. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests elsewhere in Nicaragua and Honduras should monitor the progress of this system. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 100 AM EST (0600 UTC), the center of Tropical Storm Eta was located near latitude 14.9 North, longitude 80.4 West. Eta is moving toward the west near 13 mph (20 km/h), and this general motion is expected to continue through this morning. A slower motion toward the west-southwest is forecast by this afternoon and continuing into Tuesday. On the forecast track, the center of Eta is expected to approach the northeastern coast of Nicaragua this afternoon, and make landfall within the Hurricane Warning area in Nicaragua by early Tuesday. The center of Eta is forecast to move farther inland over northern Nicaragua through early Wednesday. Maximum sustained winds are near 70 mph (110 km/h) with higher gusts. Strengthening, possibly rapid, is expected through early Tuesday, and Eta is expected to become a hurricane within the next few hours. Additional strengthening is likely thereafter, and Eta is forecast to be a major hurricane when landfall occurs by early Tuesday. Tropical-storm-force winds extend outward up to 140 miles (220 km) from the center. The estimated minimum central pressure is 989 mb (29.21 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Eta can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4 and WMO header WTNT44 KNHC. WIND: Hurricane conditions are expected in the Hurricane Warning area beginning tonight, with tropical storm conditions possible in this area by this afternoon. Tropical storm conditions are expected in the Tropical Storm Warning area by this afternoon, and hurricane conditions are possible in the Hurricane Watch area by early Tuesday. Tropical Storm conditions are possible in the Tropical Storm Watch area by early Tuesday. RAINFALL: Eta is expected to produce the following rainfall amounts through Friday evening: Much of Nicaragua and Honduras: 15 to 25 inches (380 to 635 mm), isolated amounts of 35 inches (890 mm). Eastern Guatemala and southern Belize: 10 to 20 inches (255 to 510 mm), isolated amounts of 25 inches (635 mm). Portions of Panama and Costa Rica: 10 to 15 inches (255 to 380 mm), isolated amounts of 25 inches (635 mm). Jamaica and southeast Mexico: 5 to 10 inches (125 to 255 mm), isolated amounts of 15 inches (380 mm) over southern areas. El Salvador, Southern Haiti, and the Cayman Islands: 3 to 5 inches (75 to 125 mm), isolated amounts of 10 inches (255 mm) This rainfall would lead to catastrophic, life-threatening flash flooding and river flooding, along with landslides in areas of higher terrain of Central America. Flash flooding and river flooding would be possible across Jamaica, southeast Mexico, El Salvador, southern Haiti, and the Cayman Islands. STORM SURGE: A dangerous storm surge will raise water levels by as much as 10 to 15 feet above normal tide levels in areas of onshore winds along the coast of Nicaragua within the hurricane warning area, and 3 to 5 feet above normal tide levels along the coast of Honduras within the tropical storm warning area. Near the coast, the surge will be accompanied by large and destructive waves. SURF: Swells generated by Eta are expected to affect portions of the coast of Central America and the Yucatan Peninsula of Mexico during the next few days. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 400 AM EST. $$ Forecaster Pasch
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Tropical Storm Eta Forecast Discussion Number 6
2020-11-02 03:52:11| National Hurricane Center (Atlantic)
Issued at 1000 PM EST Sun Nov 01 2020 000 WTNT44 KNHC 020252 TCDAT4 Tropical Storm Eta Discussion Number 6 NWS National Hurricane Center Miami FL AL292020 1000 PM EST Sun Nov 01 2020 Eta has continued to become better organized this evening, including the development of an impressive Central Dense Overcast (CDO) with cloud tops colder than -90C near the center, improved banding features in the northwestern semicircle, and the formation of a pinhole mid-level eye noted in 01/2322Z 91GHz SSMI/S microwave imagery. Water vapor imagery also indicates that the upper-level outflow pattern has continued to expand, with dual outflow channels having formed to the northeast and the southwest. Satellite intensity estimates are a consensus T3.5/55 kt from TAFB, SAB, and UW-CIMSS ADT. However, the initial intensity is set a little higher at 60 kt based on the pinhole eye feature...and this intensity estimate is probably conservative. An Air Force Reserve hurricane hunter aircraft is scheduled to investigate Eta in a few hours. Eta has slowed down but is still moving westward, or 270/11 kt. An expansive subtropical ridge that extends from the southwestern Atlantic across the Bahamas, Florida, and into the Gulf of Mexico is expected to keep Eta moving in a general westward direction through Monday morning. By Monday afternoon and evening, the portion of the ridge over the Gulf is forecast to build southward and eastward in the wake of an exiting mid-latitude trough currently moving across the eastern and southeastern United States. The increased ridging will act to force Eta west-southwestward and eventually southwestward over the next 36 hours, resulting in landfall along the northeastern coast of Nicaragua. After moving inland, steering currents are forecast to weaken significantly on days 3-5 as another trough digs southeastward out of the U.S. Plains and into the Gulf of Mexico, eroding the Gulf ridge and causing Eta to drift slowly westward across Central America. Compared to the preponderance of the the model guidance, the HWRF solution of Eta remaining just offshore over the northwestern Caribbean Sea is considered to be an outlier. The new NHC track forecast is very similar to the previous advisory track, and lies close to the simple-consensus models TVCA and GFEX, which are a little to the right of the corrected-consensus model, HCCA. Based on the new NHC track forecast, no changes are required to the existing tropical cyclone warnings and watches in effect. Eta has rapidly intensified 20 kt during the past 12 h. Given the much improved inner-core structure as noted in the SSMI/S imagery, combined with sea-surface temperatures in excess of 29 deg C, mid-level humidity values greater than 80 percent, and the already impressive outflow pattern, Eta should continue to rapidly strengthen until landfall occurs. The main question is: how much strengthening will take place? Some of the more reliable intensity guidance brings the cyclone up to 105-110 kt in 36 hours, with the HWRF model bringing Eta to near category-4 strength. The new NHC intensity forecast shows Eta as a major hurricane in 36 hours when it is expected to be located just inland over northeastern Nicaragua, but a stronger intensity is highly probable just before landfall occurs. Rapid weakening is forecast thereafter while the cyclone moves over the rugged, mountainous terrain of Nicaragua and Honduras, with Eta possibly devolving into a large, quasi-stationary Central American Gyre (CAG). Key Messages: 1. Eta is forecast to strengthen into a hurricane by early Monday morning. Additional strengthening is forecast thereafter, and Eta is expected to be a major hurricane before it reaches the northeastern coast of Nicaragua Monday night or early Tuesday, where a Hurricane Warning is in effect. A Tropical Storm Warning is in effect for a portion of the northeastern coast of Honduras. 2. Through Friday evening, heavy rainfall from Eta will lead to catastrophic, life-threatening flash flooding and river flooding across portions of Central America, along with landslides in areas of higher terrain. Flash and river flooding is also possible across Jamaica, southeast Mexico, El Salvador, southern Haiti, and the Cayman Islands. 3. A life-threatening storm surge, along with damaging waves, is expected along portions of the northeastern coast of Nicaragua near and to the north of where the center makes landfall. Water levels could reach as high as 10 to 15 feet above normal tide levels in some parts of the hurricane warning area. Preparations to protect life and property should be rushed to completion. FORECAST POSITIONS AND MAX WINDS INIT 02/0300Z 14.9N 80.0W 60 KT 70 MPH 12H 02/1200Z 14.8N 81.3W 75 KT 85 MPH 24H 03/0000Z 14.5N 82.6W 90 KT 105 MPH 36H 03/1200Z 14.1N 83.4W 100 KT 115 MPH...INLAND 48H 04/0000Z 14.0N 84.2W 60 KT 70 MPH...INLAND 60H 04/1200Z 14.0N 85.3W 45 KT 50 MPH...INLAND 72H 05/0000Z 14.2N 86.5W 30 KT 35 MPH...INLAND 96H 06/0000Z 14.9N 88.4W 25 KT 30 MPH...INLAND 120H 07/0000Z 15.7N 88.5W 25 KT 30 MPH...INLAND $$ Forecaster Stewart
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Tropical Storm Eta Public Advisory Number 6
2020-11-02 03:49:09| National Hurricane Center (Atlantic)
Issued at 1000 PM EST Sun Nov 01 2020 000 WTNT34 KNHC 020249 TCPAT4 BULLETIN Tropical Storm Eta Advisory Number 6 NWS National Hurricane Center Miami FL AL292020 1000 PM EST Sun Nov 01 2020 ...ETA CLOSE TO BECOMING A HURRICANE... ...LIFE-THREATENING STORM SURGE, DAMAGING WINDS, AND FLASH FLOODING AND LANDSLIDES EXPECTED ACROSS PORTIONS OF CENTRAL AMERICA... SUMMARY OF 1000 PM EST...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...14.9N 80.0W ABOUT 215 MI...345 KM E OF CABO GRACIAS A DIOS ON NIC/HON BORDER ABOUT 235 MI...380 KM ENE OF PUERTO CABEZAS NICARAGUA MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...989 MB...29.21 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * The coast of Nicaragua from the Honduras/Nicaragua border to Sandy Bay Sirpi A Tropical Storm Warning is in effect for... * The northeastern coast of Honduras from Punta Patuca to the Honduras/Nicaragua border A Hurricane Watch is in effect for... * The northeastern coast of Honduras from Punta Patuca to the Honduras/Nicaragua border A Tropical Storm Watch is in effect for... * The northern coast of Honduras from west of Punta Patuca westward to Punta Castilla A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. A warning is typically issued 36 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations difficult or dangerous. Preparations to protect life and property should be rushed to completion. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. A Hurricane Watch means that hurricane conditions are possible within the watch area. A watch is typically issued 48 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations difficult or dangerous. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests elsewhere in Nicaragua and Honduras should monitor the progress of this system. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 1000 PM EST (0300 UTC), the center of Tropical Storm Eta was located near latitude 14.9 North, longitude 80.0 West. Eta is moving toward the west near 13 mph (20 km/h), and this general motion is expected to continue through Monday morning. A slower motion toward the west-southwest is forecast by Monday afternoon and continuing into Tuesday. On the forecast track, the center of Eta is expected to approach the northeastern coast of Nicaragua Monday afternoon, and make landfall within the Hurricane Warning area in Nicaragua Monday night or early Tuesday. The center of Eta is forecast to move farther inland over northern Nicaragua through early Wednesday. Maximum sustained winds are near 70 mph (110 km/h) with higher gusts. Rapid strengthening is forecast to continue during the next 36 hours, and Eta is expected to become a hurricane by early Monday morning. Additional strengthening is likely thereafter, and Eta is expected to be a major hurricane when landfall occurs Monday night or early Tuesday. An Air Force Reserve reconnaissance aircraft will be investigating Eta later tonight. Tropical-storm-force winds extend outward up to 140 miles (220 km) from the center. The estimated minimum central pressure is 989 mb (29.21 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Eta can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4 and WMO header WTNT44 KNHC. WIND: Hurricane conditions are expected in the Hurricane Warning area beginning Monday night, with tropical storm conditions possible in this area by Monday afternoon. Tropical storm conditions are expected in the Tropical Storm Warning area by Monday afternoon, and hurricane conditions are possible in the Hurricane Watch area by early Tuesday. Tropical Storm conditions are possible in the Tropical Storm Watch area by early Tuesday. RAINFALL: Eta is expected to produce the following rainfall amounts through Friday evening: Much of Nicaragua and Honduras: 15 to 25 inches (380 to 635 mm), isolated amounts of 35 inches (890 mm). Eastern Guatemala and southern Belize: 10 to 20 inches (255 to 510 mm), isolated amounts of 25 inches (635 mm). Portions of Panama and Costa Rica: 10 to 15 inches (255 to 380 mm), isolated amounts of 25 inches (635 mm). Jamaica and southeast Mexico: 5 to 10 inches (125 to 255 mm), isolated amounts of 15 inches (380 mm) over southern areas. El Salvador, Southern Haiti, and the Cayman Islands: 3 to 5 inches (75 to 125 mm), isolated amounts of 10 inches (255 mm) This rainfall would lead to catastrophic, life-threatening flash flooding and river flooding, along with landslides in areas of higher terrain of Central America. Flash flooding and river flooding would be possible across Jamaica, southeast Mexico, El Salvador, southern Haiti, and the Cayman Islands. STORM SURGE: A dangerous storm surge will raise water levels by as much as 10 to 15 feet above normal tide levels in areas of onshore winds along the coast of Nicaragua within the hurricane warning area, and 3 to 5 feet above normal tide levels along the coast of Honduras within the tropical storm warning area. Near the coast, the surge will be accompanied by large and destructive waves. SURF: Swells generated by Eta are expected to affect portions of the coast of Central America and the Yucatan Peninsula of Mexico during the next few days. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next intermediate advisory at 100 AM EST. Next complete advisory at 400 AM EST. $$ Forecaster Stewart
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